13550009 has 8 divisors (see below), whose sum is σ = 14838528. Its totient is φ = 12270960.

The previous prime is 13549981. The next prime is 13550039. The reversal of 13550009 is 90005531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13550009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13550039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 824 + ... + 5270.

It is an arithmetic number, because the mean of its divisors is an integer number (1854816).

Almost surely, 2^13550009 is an apocalyptic number.

It is an amenable number.

13550009 is a deficient number, since it is larger than the sum of its proper divisors (1288519).

13550009 is a wasteful number, since it uses less digits than its factorization.

13550009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4735.

The product of its (nonzero) digits is 675, while the sum is 23.

The square root of 13550009 is about 3681.0336863441. The cubic root of 13550009 is about 238.4038115635.

The spelling of 13550009 in words is "thirteen million, five hundred fifty thousand, nine".